Vulcanizer



) P. F. SCHECHER. I

VULCANIZER. APPLICATION FILED SEPTA-'12, 1921.

1,41 1 ,225. Pdtented Mar. 28, 1922 UNITE p3 srA TE s PATENT omen.

2mm. F. SCHECH-ER, or s'ri mus, ansas.

vuncmrz'nn.

Tacit whom it may' concern:

Be it known that I, ,PETER F. SCHECHER, citizen of the United States, residing at St. Marys, in the county of Pottawatomie and State of Kansas, have inventedn'ew and use ful Improvements in Vulca'niZers, of which the following is a specification.

This invention. relates to vulcanizers' such as are used for repairing automobile tire tubes and has for its ob]ect the provision of an improvement in the vulcanizer of the which results in giving or yielding of the arms when the clamping screws are turned down tight. It is with the above mentioned defects in view that the present invention has been designed and which has for its object the provision of means whereby the already existing arms of this type of vulcanizer may be strengthened and which also has for an object the provision of arms of an improved pattern which are so formed that-they will brace themselves.

Another object is the provision of an improved clamping screw which is more easily turned and by means of which greater pressure may be inserted than is possible with the ordinary screw.

-An additional object is the provision of means of this character which will be simple and inexpensive in manufacture, highly efli- 1 cient in use, durable 1n service, and a general V bearlng upon the top of the plate 13. The

improvement in the art.

Vith the above and other objects and advantages in view, the invention consists in s the details of constructionto be hereinafter more fully described and claimed and illustrated in the accompanying drawings in which Figure 1 is a side elevation of a vulcanizer of the Gwynn-Bacon type showing my bracing means applied to an arm thereof,

Figure 2 is a perspective view of the brace member detached,

Figure 3is an end elevation of a vulcan- Specification of Letters Patent. Patented Mar, a lication filed September 12 1921; semi no. 500,131,

izer of this type equipped with'one of my arms, and r r Figure 4 is a perspective View ofthe im= proved arm alone.

Referring more particularly tothe drawings, the letter A designates the-base portion of a Gwynn-Bacon vulcanizer, this base portion being. adapted to be heated by the usual means, not shown. At the'upper edge of thebase' is formed a rearward'ly extending fiangeB whichsupports the usual arms 0, only one being shown in v the present in.-'

'stance. Each armis of metal and includes a vertical portion ND terminatlng' in a threaded extension E passing through the flange B and carrying a clamping nut F.

Each arm further includes a laterally extending or horizontal portion G, near the end of which is provided a threaded hole through which is passed a clamping screw which ordinarily is of the Wing type.

In carrying out the form of the invention disclosed in Figures 1 and 2, I provide a brace for this supporting arm, this brace being formed of sheet metal of suitable gauge bent to form a cylindrical sleeve 10 of a size to encircle the shank D. Formed on the edge of this sleeve are triangular ears 11 I through Which pass clamping bolts 12. It

is preferable to provide a plate 13 which is disposed upon the top of the base A and which extends rearwardly beyond th flange B with its rearmost edge preferably downturned, as indicated at 14. This plate is of course apertured for the passage of the threaded extensions E of the arms C and it will be apparent that the plate will be held in position by the arms C. In applying my bracing devicethe sleeve portion 10 thereof is disposed in encircling relation to the shank D with the lower edge of the ears 11 bolts 12 are of course tightened to prevent the sleeve from rotating upon the shank D and to hold the parts firmly in position. Owing to the provision of the triangular cars it will be apparent that efficient bracing means is provided which will prevent yielding or giving of the arms under any conditions.

Another feature of my invention is the use of a clamping screw 15 of crank shape .instead of the usual wing screw, and it will be apparent that this crank-shaped screw is more easily operable as a may be obtained. i 1

Referring to the form of the device shown in Figures 3 and I; it will be seen that I have provided a modified"-form-of'armtogreater leverage ich is formed L-shaped to provide a horizontal portion 17 "for the passage or the clamping screw and to provide agvertical; portion 18 from which extends a reduced threadedextension l9 corresponding to the extension E of the first described form. The

vertical, portion 18 of the arm is formed .with an extension 20 which extends to the edge of the plate 13and which constitutes an effective brace, as will beobvious;

It is of course to be understoodv that the operation of my device is identically the same as that-ofthe well known vulcanizer of the. type mentioned, my invention relating merely-to'tlie structural details whereby to increase-the strength and consequently the durability of the vulcanizer;

While I have shown and described the r preferred embodiment of my invention, it is of course to be understood that I reserve th right to make such changes in the form, construction and arrangement of parts as will not depart from the spirit of the inventaketheplace of the ordinary arm. In these, figures the numeral 16 designates the arm w tion or the scope of the subjoined claim;

Having thus described my invention, I claim: I

In a vulcanizer includinga base and a plurality of substantially L-shaped arms rising therefrom and formed with reduced threaded extensions passing through a po tion or" the-base'and carrying clamping nuts; bracing means comprising a plate disposed upon the top of the base and extending con-' siderably beyond the rear edge thereof and formed with holes forthe passage ofth e reduced extensions, and a sleeve adapted to] be clamped about thevertical portion oi each arm and formed with triangular ears engaging upon the top of said plateand ex tending in th opposite direction to the hori'- zontal portion of the arm. I

In testimony whereof I aflix my signature. PETER E SGHECHER. 

